• Systematic digital signing in Estonian e-Government processes : influencing factors, technologies, change managementPappel, Ingrid; Pappel, Ingmar; Tepandi, Jaak; Draheim, DirkTransactions on large-scale data- and knowledge-centered systems XXXVI : special issue on data and security engineering2017 / p. 31-51 : ill https://doi.org/10.1007/978-3-662-56266-6_2 https://www.scopus.com/sourceid/25674 https://www.scopus.com/record/display.uri?eid=2-s2.0-85037850450&origin=inward&txGid=1cb00934c8a0cdb04f2f8c5c7760ec44 https://www.webofscience.com/wos/woscc/full-record/WOS:000450903400002